Hook fastening devices for garment material



Nov. 8, 1966 H. H. woon ETAL.

HOOK FASTENING DEVICES FOR GARMENT MATERIAL 2 Sheets-Sheet 1 Filed May 28,` 1965 @m ww. m.. @l Ar Y im .mm L

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Arr-A111575 N0V 8 1966 H. H. woon ETAL 3,283,382

HOOK FASTENING DEVICES FOR GARMENT MATERIAL Filed May 28, 1965 2 Sheets-Sheet 2 23 I7 I6 l5 u Vgn-role S 22 la 2o 2fJl /gdwggdgem' AzTaE/UEY United States Patent C) 3,283,382 HOUK FASTENING DEVICES FOR GARMENT MATERIAL Herbert Howard Wood and Clarence Martin Wilson, both of Birmingham, England, assignors to Thomas Walker Limited, Birmingham, England, a company of Great Britain Filed May 28, 1965, Ser. No. 459,600 Claims priority, application Great Britain, June 24, 1964, 26,034/ 64 2 Claims. (Cl. 24-227) This invention relates to hook fastening devices primarily, although not exclusively, intended for use with a complementary staple or eye member on overlapping portions of garment material or other fabric, such as on trousers waistbands for example, and it is particularly concerned with such hook fastening devices of the kind which comprise a hook member carrying attachment prongs which are passed -through the fabric .material and clenched over against a separate back-plate positioned on the underside of the material.

According to the present invention, two-part hook fastening device for attachment to garment material or other fabric consists in a hook member comprising a plate fashioned to provide a at hook tongue in the form of a cantilever integrally joined at its inner end by a shallow step to an offset base which has a longitudinal extent less than the length of said hook tongue and `which is adapted to seat upon the fabric material, said plate carrying transversely-spaced integral attachment prongs in the region of said base part, which prongs are adapted to be passed through the fabric material and to be folded over about axes parallel to the longitudinal direction of said hook tongue during clenching, said back-plate comprising a generally flat plate having spaced apertures towards one end in alignment with the attachment prongs of the hook member and a transversely-extending raised portion contiguous with said apertures which provides a hollow recess for accommodating the folded-over or clenched prongs in shielded relationship and also provides a raised transverse seating surface -to which the base part of the hook member and interposed fabric material are clamped by the folded-over or clenched attachment prongs.

In the accompanying drawings,

FIGURE l is a perspective view of a hook member and back-plate according to one embodiment before assembly,

FIGURE 2 is a top plan view of the assembled fastening device shown in FIGURE l;

FIGURE 3 is a similar underside plan view;

FIGURE 4 is a longitudinal section on line IV-IV of FIGURE 2.; and

FIGURES 5, 6, 7 and 8 are views similar to FIGURES l, 2, 3 and 4 respectively, showing a second embodiment of the invention.

Referring to FIGURES 1 to 4 of the drawings, the hook fastening device illustrated therein is intended for use on a -garment waistband, in conjunction with a complementary staple or eye member, and it consists in a pronged hook member 1 together with an associated, separate, back-plate 2. These components are formed from sheet metal, the hook member 1 being fastened from a plate to provide a at, elongated hook tongue 3 which is in the form of a cantilever integrally joined at its inner end by a shallow step or cranked portion 4 to a transverse edge of a generally rectangular, offset-base part 5 having opposite side edges `6, 6, which are substantially shorter than the length of the hook tongue 3.

The hook member 1 carries two pairs of transverselyspaced pointed attachment prongs 7, 7, which are integral with the side edges 6, 6 of the base part 5 and which,

initially, extend rearwardly at right angles to the plane of the base part, these prongs 7, 7 being adapted to be passed through the garment fabric material 8 and to -be folded over about axes parallel to the longitudinal direction of the hook tongue 3 when they are clenched against the back-plate 2 during assembly.

The back-plate 2 itself comprises a generally at plate having overall dimensions similar to those of the hook member 1, and towards one end it is formed with spaced apertures 10, 10 for receiving the attachment prongs 7, 7 of the hook member 1, and with a raised portion formed by a pair of side-by-side transverse channels 12, 12 extending between said apertures.

In assembling this hook fastening device, the back-plate 2 is applied to the underside of the garment fabric material 8 whilst the prongs 7, 7 of the hook member 1 are passed therethrough, and through the apertures 10, 10. The attachment prongs 7, 7 are then folded over and clenched against the back-plate so as to lie within the transverse channels 12, 12 where they are accommodated in shielded relationship.

These transverse channels 12, 12 also provide a raised seating surface to which the base part 5 of the hook member and the interposed garment fabric material 8 are clamped lby the clenched attachment prongs, thereby increasing the effective elevati-on of the outer end of the hook tongue 3 and facilitating initial engagement with the complementary staple or eye mem-ber.

This arrangement also facilitates a slight relative tilting or rocking movement between the hook member 1 and back-plate 2 under the action of a garment press, which gives this type of fastener a high resistance to crushing and to detrimental permanent distortion in use.

Many modilications within the scope of this invention may, of course, be readily made -to the detailed construction described in connection with this exemplary embodiment. For example, as in the second exemplary embodiment illustrated in FIGURES 5 to 8 of the drawings, the hook fastening device may comprise a sheet-metal hook member 1a having an elongated narrow hook tongue 15 integrally joined at its inner end by a shallow stepped or cracked portion 16 to a transverse edge of a flat base part 17 carrying a single pair of pointed attachment prongs 18, 18, one at each yopposite side edge, lying on a common transverse axis. In this case, the back-plate 2a conveniently has a raised portion formed by a single transverse channel 20 extending between a pair of prongreceiving apertures 21, 21, which may be in the form of open notches in the sides of the plate, as shown.

If desired, the transverse channel 20 may be somewhat enlarged over its centre portion atr22, and the base part 17 of the hook member 1a may have a short extension 23 which assists in preventing `any excessive tendency to lifting of the hookA tongue 15 through tilting about the transverse prong axis during normal use. The overall longitudinal extent of the base part 17, however, should still 'he less than the length of the cantilever part of the hook tongue 15 so that there will never be any tendency for the hook tongue to be bent inwards towards the garment material and suifer a detrimental permanent distortion if subjected to excessive pressure under the action of a garment press.

We claim:

1. A hook fastening device for attachment to a fabric material, said device consisting of a hook member and -a separate back-plate member, said hook member comprising a cantilever hook tongue, a base part which is shorter than said hook tongue, a cranked portion integrally interconnecting said hook tongue and said base part for maintaining said hook tongue olset relatively to said base part, and a pair of pointed attachment prongs inte-gral with said base part and located along a common transverse axis at opposed side edges of said base part, said prongs being foldable about axes extending substantially perpendicularly to said transverse axis, said base part having a longitudinal portion located opposite said hook tongue and in use lying against the fabric material to prevent excessive lifting of said hook tongue; said back plate member comprising a plate having spaced recesses for alignment with said prongsvand a raised portion ladjacent said recesses for accommodating the folded prongs anlfor providing a seating surface to which said base part and the interposed fabric material are clamped by the folded prongs.

2. A hook fastening device for -attachment to a fabric material and for use with a complementary eye member for fastening said fabric material to an overlapping material, said device consisting of an elongated sheet metal hook member and a separate elongated sheet metal back plate member, said hook member comprising a hook tongue,'a base part, a cranked portion integrally interconnecting said hook tongue and said base -part for maintaining said hook tongue offset relatively to said base part, and pointed attachment prongs integral with said base part and located at opposed side edges of said kbase 25 spaced recesses for alignment with said prongs and a raised portion adjacent said recesses for accommodating the folded prongs and for .providing a `seating surface to which lsaid base part and the interposed fabric material are clamped by the folded prongs, said back plate member further comprising an outer end portion integral with and offset longitudinally relatively to said raised portion, the hook tongue of the hook member and the outer end portion of the. back plate member constituting opposed spaced-apart substantially parallel jaws for receiving said eye member, said raised portion and said cranked portion jointly forminga spacing between said opposed jaws which is in excess of the thickness of said `fabric material for receiving said eye member.

References Cited by the Examiner UNITED STATES `PATENTS 2,731,694 1/ 1956 Steinmetz 24-227 FOREIGN PATENTS 846,580 8/ 1960 Great- Britain. 862,852 3/ 1961 Great Britain. 863,183 3/ 1961 Great Britain. 954,152 4/ 1964 Great Britain.

WILLIAM FELDMAN, Primary Examiner.

E. SIMONSEN, Assistant Examiner. 

1. A HOOK FASTENING DEVICE FOR ATTACHMENT TO A FABRIC MATERIAL, SAID DEVICE CONSISTING OF A HOOK MEMBER AND A SEPARATE BACK-PLATE MEMBER, SAID HOOK MEMBER COMPRISING A CANTILEVER HOOK TONGUE, A BASE PART WHICH IS SHORTER THAN SAID HOOK TONGUE, A CRANKED PORTION INTEGRALLY INTERCONNECTING SAID HOOK TONGUE AND SAID BASE PART FOR MAINTAINING SAID HOOK TONGUE OFFSET RELATIVELY TO SAID BASE PART, AND A PAIR OF POINTED ATTACHMENT PRONGS INTEGRAL WITH SAID BASE PART AND LOCATED ALONG A COMMON TRANSVERSE AXIS AT OPPOSED SIDE EDGES OF SAID BASE PART, SAID PRONGS BEING FOLDABLE ABOUT AXES EXTENDING SUBSTANTIALLY PERPENDICULARLY TO SAID TRANSVERSE AXIS, SAID BASE PART HAVING A LONGITUDINAL PORTION LOCATED OPPOSITE SAID HOOK TONGUE AND IN USE LYING AGAINST THE FABRIC MATERIAL TO PREVENT EXCESSIVE LIFTING OF SAID HOOK TONGUE; SAID BACK PLATE MEMBER COMPRISING A PLATE HAVING SPACED RECESSES FOR ALIGNMENT WITH SAID PRONGS AND A RAISED PORTION ADJACENT SAID RECESSES FOR ACCOMMODATING THE FOLDED PRONGS AND FOR PROVIDING A SEATING SURFACE TO WHICH SAID BASE PART AND THE INTERPOSED FABRIC MATERIAL ARE CLAMPED BY THE FOLDED PRONGS. 